Zhaokun Luan

TL;DR: In this paper, the individual and competitive adsorption capacities of Pb 2+, Cu 2+ and Cd 2+ by nitric acid treated multiwalled carbon nanotubes (CNTs) were studied.

TL;DR: In this article, carbon nanotubes (CNTs) were oxidized with H2O2, KMnO4, and HNO3, and the experimental results suggest that cadmium(II) adsorption capacities for three kinds of oxidized CNTs increase due to the functional groups introduced by oxidation compared with the as-grown CNT.

TL;DR: Desorption studies reveal that Pb2+ can be easily removed from carbon Nanotubes by altering the pH values of the solution using both HCl and HNO3, indicating that carbon nanotubes are a promising absorbent for wastewater treatment.

TL;DR: In this article, the authors show that carbon nanotubes (CTNs) show exceptional adsorption capability and high adorption efficiency for lead removal from water and suggest that CNTs can be good Pb2+ adsorbers and have great potential applications in environmental protection.

TL;DR: A new candidate for fluoride adsorption from water, amorphous Al2O3 supported on carbon nanotubes (Al 2O3/CNTs) is reported in this article.